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Two 2.3-cm-diameter-disks spaced 1.8 mm apart form a parallel-plate capacitor. The electric field between the disks is 4.6×105V/m.
a. What is the voltage across the capacitor? (Express your answer with the appropriate units.)
b. How much charge is on each disk? (Enter your answers numerically separated by a comma.)
c. An electron is launched from the negative plate. It strikes the positive plate at a speed of 2.2×107m/s. What was the electron's speed as it left the negative plate?
(Express your answer with the appropriate units.)
If a cube of a certain metal increases its volume from 15 cm3 to 17 cm3 as the temperature increases from 12°C to 28°C
A large wooden turntable in the shape of a flat uniform disk has a radius of 2.00 m and a total mass of 120kg. The turntable is initially rotating at 3 rad/s about a vertical axis through its center.
In order to manufacture these coffee tables, the company would need to incur $525,000 in fixed costs for new equipment. Calculate the break-even point of the coffee tables in units sold. Illustrate what would be the total revenue at the break-even po..
A particular species of copepod, a small marine crustacean, emits a flash of light consisting of 1.4x1010 photons at a wavelength of 490 nm. The flash lasts for 2.4 s. What is the power of the flash?
When you look at your reflection in the inside, concave side of a spoon, your image appears upside down. Why? Discuss how your distance from the spoon and the degree of curvature of the spoon affects your image.
A man pushes on a piano with mass 200 {rm kg} so that it slides at constant velocity down a ramp that is inclined at 18.3^circ above the horizontal floor. Ignore any friction acting on the piano.
a solid aluminum ingot weighs 89n in the air. the ignot is suspended from a rope and totally immersed inn water. what is the tension in the rope
Use the worked example above to help you solve this problem. A balloon contains 4.40 moles of a monatomic ideal gas. Find the work Wenv done by the gas in expanding the balloon
your refrigerator has a mass of 124.7 kg including the food in it. it is standing in the middle of your kitchen and you
a skateboarder starting from rest rolls down a 12.0 m ramp. when she arrives at the bottom of the ramp her speed is
A 0.250 block moving vertically upward collides with a light vertical spring and compresses it 4.00 before coming to rest. If the spring constant is 53.0 , what was the initial speed of the block? (Ignore energy losses to sound and other factors d..
A small rock is thrown vertically upward with a speed of 17.0 meter per second from the edge of the roof of a 26 meter tall building. Determine the speed of the rock just before it hits the street
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